Upright fan



FIG. 1 is a top perspective view of a upright fan, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a back elevational view thereof;

FIG. 4 is a right elevational view thereof;

FIG. 5 is a left elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The wheel components, motor components, and control components shown in broken lines are unclaimed environment, and form no part of the claimed design. 

The ornamental design for a upright fan, as shown and described. 